Synergistic insecticidal composition used for preventing and curing icerya purchasi maskell

An insecticidal composition and a technology for cotton scales, which are applied in the field of pesticides, can solve the problems of decreased control effect, great harm, rampant blowing of cotton scales and the like, and achieve the effects of reducing usage, broad application prospects, and delaying the problem of drug resistance.

Active Publication Date: 2013-01-09
INST OF ZOOLOGY GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For a long time, the cotton scale has developed resistance to pyrethrin, which has caused a significant decline in the control effect and the adverse consequences of the rampant occurrence of the cotton scale. At the same time, the permethrin is more harmful to the environment.

Method used

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  • Synergistic insecticidal composition used for preventing and curing icerya purchasi maskell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Test object: Icerya purchasesi Maskell.

[0019] Test method: Refer to the People's Republic of China Agricultural Industry Standard "Pesticide Indoor Bioassay Test Guidelines" Insecticide NY / T1154.6-2006.

[0020] Test medicament: matrine is the ethanol extract of matrine root, the content of matrine is 20%, and the content of methethrin used is 99%.

[0021] The test uses the method of dipping insects. The leaves with a certain number of nymphs were collected in the field, and the dead and weak nymphs were removed under a dissecting microscope, and the healthy nymphs were kept. After soaking in the medicinal solution for 6 seconds, they were naturally dried indoors. The control was treated with an aqueous solution without pesticides. 30 animals per treatment were repeated 3 times. After 24 hours, under the binocular dissecting microscope, the worms were gently turned over with a dissecting needle, and the worms that did not move were regarded as dead worms. The corr...

Embodiment 2

[0026] Prepare 100g of 1% matrine · methethrin (0.1% matrine + 0.9% methethrin) water emulsion, the quality of each component is respectively:

[0027] Weigh 0.1g of matrine original drug, 0.91g of methethrin original drug, TX-108g, 7g of xylene, 2g of gum arabic, 1g of xanthan gum, 0.3g of sodium benzoate, 0.4g of ethylene glycol, and remove the rest. ionized water. The above raw materials were put into mixing according to the conventional method for preparing an emulsion in water, and 100 g of 1% matrine·methethrin in water emulsion was obtained. The content of the original drug of matrine used is 98%, and the content of the original drug of fenpyrin used is 99%.

Embodiment 3

[0029] Prepare 100g 2% matrine · methethrin (0.1% matrine+1.9% methethrin) microemulsion, the quality of each component is respectively:

[0030] Weigh 0.1g of the original drug of matrine, 1.92g of the original drug of methethrin, 5g of calcium dodecylbenzenesulfonate, 8g of dimethylformamide, 5g of triphenyl phosphite, 0.3g of sorbitol, and the balance Deionized water. The above raw materials were put into mixing according to the conventional microemulsion preparation method to obtain 100g 2% matrine·methethrin microemulsion. The content of the original drug of matrine used is 98%, and the content of the original drug of fenpyrin used is 99%.

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Abstract

The invention discloses a synergistic insecticidal composition used for preventing and curing icerya purchasi maskell. The synergistic insecticidal composition takes sophocarpidine and fenvalerate which are at mass ratio of (9:1)-(1:29) as the basic active ingredients. Tests prove that after being compounded, the sophocarpidine and fenvalerate have synergistic effect in preventing and curing icerya purchasi maskell. Therefore, the invention solves the problem of the disadvantages of the sophocarpidine in practical applications, the harm of the fenvalerate to the environment and the drug resistance of the icerya purchasi maskell. With the compound of the sophocarpidine and fenvalerate, the dosage of the fenvalerate is reduced, which is good for environment protection. Meanwhile, the problem of drug resistance of the icerya purchasi maskell to the fenvalerate is delayed or overcome.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a synergistic insecticidal composition for preventing and controlling the cotton scale. Background technique [0002] Icerya purchasi Maskell (Icerya purchasi Maskell), belonging to the order Homoptera and the family Margarodidae, is also known as cotton ball scale, white stripe scale and white squid, etc. It is a worldwide pest and is distributed in the northeast of China. , North China, Northwest, Central China, East China, South China, and Southwest China; it is distributed abroad in Japan, Korea, the Philippines, Indonesia, and Sri Lanka, and also in Europe, Africa, and North America. The phagocytosis has very mixed feeding habits and is harmful to more than 200 kinds of green plants. Female adults or nymphs gather on leaf buds, young shoots, new shoots and branches, sucking nutrients from plants, causing a large number of fallen leaves and fruits, and even the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N37/38A01P7/04
Inventor 安新城徐齐云叶静文韩诗畴
Owner INST OF ZOOLOGY GUANGDONG ACAD OF SCI
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